SPECIAL REPORT: 2011 Police Vehicle Tire Evaluation

The Michigan State Police conducted an aftermarket tire test for law enforcement fleet vehicles in June 2011.

The purpose of the tire test was to determine which tires are capable for law enforcement use. The Precision Driving Unit compared aftermarket tires to original equipment manufacturer (OEM) tires outfitted on fleet vehicles when built on the assembly line.

There were three major components to the test: braking, endurance and steady-state turning.